Electric floor lamp



J. C. FAETH ELECTRIC FLOOR LAMP June 22 1926.

Filed March 29, 1924 INVENTOR ATTORNE Joseph c. Faem lllllllll 10 brilliv Patented June 22, 1926.

UNITED' STATES y l 1,589,845 PATENT oFF-lcs.

im C. ILITH, l' HIBIDEN, CONNECTICUT, SIGNOR TO TH H. E. RAUAUD Conm, CFHELDEN, CONNECTICUT, A. COBPCMTION 0F CONNECTICUT.

ELECTRIC FLOOR Ilm.

Application Bled Ieren 88,1924. serial lo. 708,802.

This invention relates to electric light fix'- and more particularlytoan electric floor lamp having a swiveled lamp-holding bridge arm.

On object of the invention is to provide a door lamp of the above naturein which the current supplying conducting wires are concealed within ahollow vertical supporting dgpost and in a hollow lamp-carrying arm.

A further object is to provide a device of the above nature which willbe simple inexpensive to manufacture, ornamenta in sha e, and veryefficient and durable in use.

ith these and other objects in view, there has been illustrated on theaccompanying drawings one form in which the invention ma be convenientlyembodied in ractice. lgig. 1 re resents a side view of t e lamp supportwi the base portion shown partly in section.

Fig. 2 is an enlarged sectional view of the upper portion of the lampsupport showing the swivel joint between the bridge arm and the verticalstandard. I

Fig. 3 is a sectional view taken alongl the plane 3-3 of Fig. 2 lookingin the 'rection ofthe arrows.

Fig. 4 is a side view of a tool adapted to be used for assemblin thedevice.

Referring now to t e drawings in which like reference numerals denotecorrespondv ing parts throughout the several views, the

numeral indicates the hollow base of the lam support, said base beingconvex upwar ly and having its edge resting upon the floor. The upperpart of the base 10 is provided with an opening within which its aflanged bushing 11 for receiving a twowire conductor 12 which suppliescurrent to the lamp. The top of the base v10 has a pedestal ortion13inte-grall formed therewith, said pedestal portion ing provided with ahollow central passage, tapped at its up r part 14 to receive the lowerthreaded ein?e 15 of a hollow central post 16.

Surrounding the post 16 is an ornamental tube 17, the lower end 18 ofwhich is flared and adapted to seat upon the top of the pedestal portion13. The upper end of the tube 17 is also enlarged to provide a pair ofannular beads 19 and 20 comprising a capital for the standar-d of thelam In order to provide a swive su port for the bridge arm of the lamp,a colar 21 is provided, said collar being seated upon the upper end ofthe tube 17, and being' composed of any suitable metal havin longwearing properties. The collar 21A as an annular shoulder 22 on itsinterior, said shoulder forming a seat for a hollow swivel stud 23. Theswivel stud 23 is provided at its lower end withv an enlarged centralpassage 24, which is tapped to engage the threaded top portion 25 of thepost 16, said top portion preferably extending a short distance abovethe top of the outer tube 17 .as clearly shown in Fig. 2.

The upper portion of the swivel stud 23 has a central passa e 26, thediameter of which is about hal that of the enlarged passage 24, saidupper passage 26 being countersunk at 27 an ta ped to receive thethreaded rod 28 of a too to .be used in assemblin the device. As clearlyshown in Fig. 4, t e threaded rod 28 of the assemblin tool is providedwith an enlar d cylindrica top portion 29 having a hand e 30. A lockingnut 31 is mounted upon the lower part of the rod and has ay pair of sidearms 32 extending laterally therefrom in opposite directions.

In order to limit the rotation .of the bridge arm, the swivel stud 23 isprovided in its upper portion with an outer annular groove 33 preferablyof rectangular cross section. A locking lug 34 is screwed in to thebottom of the groove 33 and has its free extremity disposed below theouter edge of said stud. The locking lu 34 is adapted to interlock witha pin on t e bridge arm to be hereinafter described.

The bridge arm comprises a hollow socket portion 35, an ornamental capportion 36, a curved ornamental arm 37, and a hollow curvedlamp-supporting arm 38 bent downwardly at its outer end, for supportinga lamp socket 39 and a conical lamp shade 40 of any usual standardconstruction. The lower ortion of the bridge arm socket 35 is 100 provied with a de riding neck 41 adapted to fit loosely aroun the outside ofthe swivel stud 23, and having its bottom edge resting upon the top ofthe collar 21.

The neck member 41 of the bridge aim 105 socket has an annular groove 42in its periphery, said groove having a 'countersunk screw 43 passingtherethrough. The inner extremity of the screw 43 is unthreaded andcomprises a pin which is adapted to extend 11 FIA into the annulargroove 33 of the swivel stud 23 to interlock with the locking lug 34,previously mentioned.

As will be clear from the above description, the stationary locking lug34 will serve as a stop for the sc-rew pin 43 to limit the movement ofthe bridge arm to slightly less than one revolution in either direction.By means of this construction it will be seen that the conductor cord 12cannot possibly become twisted or knotted and consequently all danger ofstripping the insulation therefrom or otherwise injuring the conductorwill be entirely avoided.

ln operation, when it is desired to assemble the device, the hollowtube16 will first be screwed into the pedestal portion 13 of the base10. The ornamental tube 17 is then slipped down over the tube 16 untilit rests on the pedestal 13. The collar 21 is then placed in ositionupon the top of the orna- :mental tule 17, after which the swivel stud23 may be threaded by hand upon the top of the hollow post 16 until itrests upon the shoulder 22 in the collar.

rlhe next operation is performed by using the special tool shown in Fig.4. 1n this operation, the threaded rod 28 of the tool is screwed intothe upper central passage'26 of the swivel stud 23 until the nut 31engages the top of the stud. The rotation of the b handle 30 iscontinued until the cylindrical portion 29 engages firmly upon the nut31, thereby locking the tool securely to the swivel stud 23. Therotation of the tool is then continued for a short distance in order toscrew the swivel stud still further down upon the exterior of the hollowpost 16. During this operation, the post 16 will be placed undertension, while the collar 21 and the outer tube 17. will at the sametime he put under compression, being pressed downwardly against thepedestal portion 13. The stationary parts of the lamp support will thusbe rigidily clamped together and will form a stable support for thebridge arm, which may next be slipped into position around the swivelstud. The bridge arm may then be locked in position by driving the screw43 into the swivel stud groove 33.

One advantage of this invention is that the lamp may be wired throughthe base of the pedestal so that there will be no wires hanging abovethe floor which would be in the way.

While there has been disclosed in this specification one form in whichthe invention may be embodied, it is to be understood that this form isshown for the purpose of illustration only, and that the invention isnot to be limited to the specific disclosures but may be embodied invarious other forms without departing from its spirit. In short, theinventionl includes all the modifications and embodiments coming withinthe scope of the followin claims.

Having thus ully described the invention, what is claimed as new, andfor which it is desired to secure Letters Patent, is:

1. In a swivel support for an electric lamp, a base, a hollow supportingost mounted on said base, ay tube surroun ing said post, the top of saidpost extending above said tube, a collar resting on said tube aroundsaid post, a swivel stud seated in `said collar and threaded on saidpost, a lamp-holding bridge arm fitted over said stud and rotatablyengaging said collar, a conductor for supplying current to said lamp,and means for preventing said bridge arm :trom rotating more than onerevolution whereby said conductor will be prevented from injury.

2. ln a swivel support for an electric lamp, a base, a hollow supportingpost mounted on said base, a tube surroundin said post, the top of saidpost extending a ove said tube, a collar resting on said tube aroundsaid post, a swivel stud seated in said collar and threaded on saidpost, a lamp-holding bridge arm itted over said Stud and rotatablyengaging said collar, a conductor for supplying current to said lamp,said stud havmg a locking lug, and means on the inside of said ridge armfor engaging said lug to prevent said bridge arm from rotating more thanone revolution whereby said conductor will be prevented from injury.

3. In a swivel support for an electric lamp, a base, a hollow supportinpost mounted on said base, a tube surroun mg said post, the top of saldpost extending above said tube, a collar resting on said tube aroundsaid post, a swivel stud seated in said collar and threaded on saidpost, a lamp-holding bridge arm fitted over said stud and rotatablyengagmg said collar, a conductor for supplying current to said lamp,said stud having an annular groove on its periphery, a locking lug insaid groove and secured to the base thereof, and means on the inside ofsaid bridge arm for engaging said lug to revent said bridge arm fromrotating more tllian one revolution whereby said conductor will beprevented from injury.

4. In a swivel support for an electric floor lamp, a base, a hollow postsup orted by said base, a tube surrounding sai post and supported onsaid base, a collar resting on said tube, a cylindrical hollow studseated in said collar and threaded upon the top of said post, a bridgearm comprising a hollow lamp-supportmg member and a hollow socket, aconcealed conductor cord passing through said base, post, stud, andbridge arm, said socket fitting over said stud and' rotatively mountedon said collar, and interlocking'means. on said stud and socket forpreventing said bridge arm :from rotating more than one revolutionwhereby said conductor will be prevented from injury.

5. In a swivel support for an electric Hoor lamp, a base, a hollow postsupported by said base, a tube surrounding said post and supported onsaid base, a collar resting on`said tube, a cylindrical hollow studseated in said collar and threaded upon the top of said post, a bridgearm comprising a hollow lamp-supporting member and a hollow socket, aconcealed conductor cord passing through said base, post, stud, andbridge arm, said socket fitting over said stud and rotatively mounted onsaid collar, and interlocking means on said stud land socket forpreventing sa-id bridge arm from rotating more than one revolutionwhereby said conductor will be prevented from injury, said stud beingtapped at its upper portion to re' ceive ay threaded assembling tool forpermittin said stud to be screwed down u on said holl) ow post totightly clamp said co la-r and tu e.

6. In a swivel support for an electric door lamp, a hollow base, ahollow ost supported on said base, a tube surrounding said post and alsosupported on said base, a swivel stud secured on the top of said postfor uniting said post and tube into a rigid structure, a lamp-holdingbridge arm rotatably mounted on said stud, and interlocking means onsaid stud and bridge arm to limit thedbridge arm to one revolution onsaid stu In testimony whereof, I haveaixed my signature to thisspecication.

JOSEPH C. FAETH.

